user-manual: start revising "internals" chapter

diff --git a/setup.c b/setup.c
index 76e5e693ccfbdcdcc763405ae026916902be830e..a45ea8309a9773160597f142f1208a6129885499 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -251,7 +251,7 @@ const char *setup_git_directory_gently(int *nongit_ok)
        offset++;
        cwd[len++] = '/';
        cwd[len] = 0;
-       inside_git_dir = !strncmp(cwd + offset, ".git/", 5);
+       inside_git_dir = !prefixcmp(cwd + offset, ".git/");
        return cwd + offset;
 }